nanocore | 691c9052e43556c9e4fbbec1db2f27bb448bdc3ee6492a648ff0a5b53d35b5e8

Analysis

max time kernel
146s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-01-2025 21:20

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General

Target

eda1f9271a18bd14c8e3ccc575ef8da0.exe
Size

1.3MB
MD5

eda1f9271a18bd14c8e3ccc575ef8da0
SHA1

704f796328f013f1ac9d2f82104c254bc96b8130
SHA256

691c9052e43556c9e4fbbec1db2f27bb448bdc3ee6492a648ff0a5b53d35b5e8
SHA512

50874d1629809f4e1c3ebf04ddd5303f21ec30e3f4782c398f369cbc048c7fc63af23e59497815325619a650d724270d498ffbb8feb0a1f11055ab603f8073b1
SSDEEP

24576:gAHnh+eWsN3skA4RV1Hom2KXMmHaH04xmQPD5U:Xh+ZkldoPK8YafxU

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

ponnyhurb.duckdns.org:6290

Mutex

b3d970d4-fe05-46df-a7e4-b0e6b6eee3ae

Attributes

activate_away_mode
false
backup_connection_host
ponnyhurb.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-02-04T04:37:36.694334036Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
3992
connection_port
6290
default_group
ponnyhurb.duckdns.org
enable_debug_mode
true
gc_threshold
1.0485783e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
b3d970d4-fe05-46df-a7e4-b0e6b6eee3ae
mutex_timeout
4963
prevent_system_sleep
false
primary_connection_host
ponnyhurb.duckdns.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	eda1f9271a18bd14c8e3ccc575ef8da0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	convertvhd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	convertvhd.exe

Executes dropped EXE 2 IoCs

pid	Process
3844	convertvhd.exe
4156	convertvhd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Monitor = "C:\\Program Files (x86)\\SCSI Monitor\\scsimon.exe"	RegAsm.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	RegAsm.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000a000000023b82-20.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1856 set thread context of 3340	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	83
PID 3844 set thread context of 4584	3844	convertvhd.exe	107
PID 4156 set thread context of 2004	4156	convertvhd.exe	111

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SCSI Monitor\scsimon.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\SCSI Monitor\scsimon.exe	RegAsm.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	convertvhd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eda1f9271a18bd14c8e3ccc575ef8da0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	convertvhd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3820	schtasks.exe
4740	schtasks.exe
1900	schtasks.exe
2304	schtasks.exe
1524	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3340	RegAsm.exe
3340	RegAsm.exe
3340	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3340	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3340	RegAsm.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 3340	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	83
PID 1856 wrote to memory of 3340	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	83
PID 1856 wrote to memory of 3340	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	83
PID 1856 wrote to memory of 3340	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	83
PID 1856 wrote to memory of 3340	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	83
PID 3340 wrote to memory of 3820	3340	RegAsm.exe	84
PID 3340 wrote to memory of 3820	3340	RegAsm.exe	84
PID 3340 wrote to memory of 3820	3340	RegAsm.exe	84
PID 3340 wrote to memory of 4740	3340	RegAsm.exe	86
PID 3340 wrote to memory of 4740	3340	RegAsm.exe	86
PID 3340 wrote to memory of 4740	3340	RegAsm.exe	86
PID 1856 wrote to memory of 1900	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	97
PID 1856 wrote to memory of 1900	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	97
PID 1856 wrote to memory of 1900	1856	eda1f9271a18bd14c8e3ccc575ef8da0.exe	97
PID 3844 wrote to memory of 4584	3844	convertvhd.exe	107
PID 3844 wrote to memory of 4584	3844	convertvhd.exe	107
PID 3844 wrote to memory of 4584	3844	convertvhd.exe	107
PID 3844 wrote to memory of 4584	3844	convertvhd.exe	107
PID 3844 wrote to memory of 4584	3844	convertvhd.exe	107
PID 3844 wrote to memory of 2304	3844	convertvhd.exe	108
PID 3844 wrote to memory of 2304	3844	convertvhd.exe	108
PID 3844 wrote to memory of 2304	3844	convertvhd.exe	108
PID 4156 wrote to memory of 2004	4156	convertvhd.exe	111
PID 4156 wrote to memory of 2004	4156	convertvhd.exe	111
PID 4156 wrote to memory of 2004	4156	convertvhd.exe	111
PID 4156 wrote to memory of 2004	4156	convertvhd.exe	111
PID 4156 wrote to memory of 2004	4156	convertvhd.exe	111
PID 4156 wrote to memory of 1524	4156	convertvhd.exe	112
PID 4156 wrote to memory of 1524	4156	convertvhd.exe	112
PID 4156 wrote to memory of 1524	4156	convertvhd.exe	112

C:\Users\Admin\AppData\Local\Temp\eda1f9271a18bd14c8e3ccc575ef8da0.exe
"C:\Users\Admin\AppData\Local\Temp\eda1f9271a18bd14c8e3ccc575ef8da0.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3340
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6F73.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3820
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6FF1.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4740
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn chglogon /tr "C:\Users\Admin\CompatTelRunner\convertvhd.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1900

C:\Users\Admin\CompatTelRunner\convertvhd.exe
C:\Users\Admin\CompatTelRunner\convertvhd.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3844
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4584
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn chglogon /tr "C:\Users\Admin\CompatTelRunner\convertvhd.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2304

C:\Users\Admin\CompatTelRunner\convertvhd.exe
C:\Users\Admin\CompatTelRunner\convertvhd.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4156
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn chglogon /tr "C:\Users\Admin\CompatTelRunner\convertvhd.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\RegAsm.exe.log

Filesize
496B

MD5
5b4789d01bb4d7483b71e1a35bce6a8b

SHA1
de083f2131c9a763c0d1810c97a38732146cffbf

SHA256
e248cef9500ed6e0c9f99d72a2a6a36955a5f0cfc0725748ef25a733cc8282f6

SHA512
357e18ef30430e4b9cc4f2569b9735b1cd12f934c83162e4de78ac29ba9703b63ddb624ccc22afd5a5868f6e9d91a3c64581846abac22e9625f5b2e3d80b3ede

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6F73.tmp

Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6FF1.tmp

Filesize
1KB

MD5
2862e61d09852ea2886c036af0465051

SHA1
45e30b14543868213f7f1cba0a1e0cc840fb2cd2

SHA256
d4ba6219d0aff5a36d129a8475cf35b00043d205f751f63ddd56a5c7d4a03ff3

SHA512
33dfd9d12adaa19dd3d4dd7013930e233dd3ff1d114e1e86e50d20ffa848a27582eebdffc09ab974b8de86316c01da6f6254f349992ad507d0f8b13cf0e36579

Download Submit
C:\Users\Admin\CompatTelRunner\convertvhd.exe

Filesize
1.3MB

MD5
62ace37c1b3a0809c9135b4b3cf3c137

SHA1
77bffaf765e9b021e6d5c9e197b3f680cbe88f01

SHA256
705299a59d062daf96676975c417a1c0d321af8460687a9015c5164281597d6b

SHA512
2b0c65a5f99baae37ad9538af6150d359896dfcdb65649bc22339b60415182ebe6f077cec4ee0bc0ec1e0ed163cd4af704907e4cde1740b838001fe6b73ce652

Download Submit
memory/1856-0-0x0000000003600000-0x0000000003601000-memory.dmp

Filesize
4KB

Download
memory/3340-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3340-6-0x0000000073D62000-0x0000000073D63000-memory.dmp

Filesize
4KB

Download
memory/3340-7-0x0000000073D60000-0x0000000074311000-memory.dmp

Filesize
5.7MB

Download
memory/3340-8-0x0000000073D60000-0x0000000074311000-memory.dmp

Filesize
5.7MB

Download
memory/3340-16-0x0000000073D62000-0x0000000073D63000-memory.dmp

Filesize
4KB

Download
memory/3340-17-0x0000000073D60000-0x0000000074311000-memory.dmp

Filesize
5.7MB

Download
memory/3340-18-0x0000000073D60000-0x0000000074311000-memory.dmp

Filesize
5.7MB

Download